PartnerNaomi Koshi

Bar Admissions

admitted in Japan, 2002 and readmitted in 2020
admitted in New York, 2010
admitted in California, 2021
Daini Tokyo Bar Association

Contact Information

TEL +81-3-6270-3500
FAX +81-3-6270-3501


Japanese, English


Otemachi, San Francisco


Hokkaido University (LL.B., 2000)
Hokkaido University, Graduate School of Law (LL.M., 2001)
Nishimura & Asahi (2002 - 2011)
Lecturer, Waseda University Graduate School of Asia Pacific Studies (2005)
Harvard Law School (LL.M., 2009)
Debevoise & Plimpton LLP, New York (2009 - 2010)
Visiting Fellow, Columbia Business School, Center on Japanese Economy and Business (2010 - 2011)
Intern, General Legal Division, Office of Legal Affairs, The United Nations Headquarters, New York (2011)
Mayor of Otsu City (2012 - 2020)
Young Global Leader, World Economic Forum (2015)
Champion Mayor for Inclusive Growth, OECD (2016)
Co-Chair, Japan Chapter of Harvard Law School Women's Alliance (2018 - present)
Outside Director, V-cube, Inc. (2020 - 2024)
Executive Advisor, General Incorporated Association Smart City Institute Japan (2021 - present)
External Director, SoftBank Corp. (2021 - present)
Serving as liaison between Miura & Partners US and Otemachi office (based in the Otemachi office) (2023 - present)
Outside Audit & Supervisory Board Member, Mitsubishi Research Institute, Inc. (2023 - present)

Practice Areas



Notice. We use cookies to provide necessary website functionality, improve your experience and analyze our traffic. By using our website, you agree to our Privacy Policy and our Cookies Policy.